# -*- mode: python -*-
###
#
# (c) 2000-2007 Wijnand Modderman <wijnand at tehmaze dot com>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
#   * Redistributions of source code must retain the above copyright notice,
#     this list of conditions, and the following disclaimer.
#   * Redistributions in binary form must reproduce the above copyright notice,
#     this list of conditions, and the following disclaimer in the
#     documentation and/or other materials provided with the distribution.
#   * Neither the name of the author of this software nor the name of
#     contributors to this software may be used to endorse or promote products
#     derived from this software without specific prior written consent.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# POSSIBILITY OF SUCH DAMAGE.
###

__revision__ = '$Hg:$'

# system imports
import glob
import os
import types

# DDB imports
from ddb.log import log
from ddb.tools import localImport

class LangException(Exception):
    pass

class ILanguages:
    def __init__(self):
        self.languages = {}
        self.default   = 'en_US'
        for x in glob.glob('lang%s*.py' % os.sep):
            if x.startswith('lang%s_' % os.sep):
                continue
            x = x.replace(os.sep, '.').rstrip('.py')
            l = localImport(x)
            if hasattr(l, '_lang') and hasattr(l, '_locale'):
                self.add(getattr(l, '_locale'), getattr(l, '_lang'))

    def add(self, locale, _lang):
        self.languages[locale] = _lang
        log.msg('Added locale for %s' % locale)

    def get(self, s, args=None):
        #if not locale:
        locale = self.default
        if args:
            if type(args) not in [types.ListType, types.TupleType]:
                args = (args, )
            elif type(args) == [types.ListType]:
                args = tuple(args)
            return self.languages[locale][s] % args
        return self.languages[locale][s] 

    def setDefault(self, default):
        if not default in self.languages.keys():
            raise LangException('No such language available')
        self.default = default

languages = ILanguages()
lang      = languages.get

# vim:ts=4:sw=4:et:
